Austin edit: Though Treyarch didn’t release patch notes, things that I’ve noticed include the following:
– Weapon balance fixes
– Return of the “Cursor Sensitivity” and “Cursor Speed” options for Wii Remote players
– Multi-Team, Mercenary Moshpit modes added
Call of Duty: Black Ops II has been patched on Wii U. Activision and Treyarch sent out an update around a day or so ago. Players should be able to access the 106MB download now.
Thanks to Alfalfa for the tip.